| 5490216 |
Thousand Cankers Disease |
Geosmithia morbida |
Canker produced by Geosmithia morbida around gallery of walnut twig beetle in southern California walnut |
| 1476132 |
corn smut |
Ustilago zeae |
Corn smut infested ear of sweet corn compared to healthy ear. |
| 5417122 |
dollar spot |
Sclerotinia homoeocarpa |
Foliar symptoms |
| 5417116 |
Drechslera leaf spot |
Drechslera spp. |
|
| 5406096 |
Thousand Cankers Disease |
Geosmithia morbida |
Canker development around walnut twig beetle gallery in English walnut. |
| 5406094 |
Thousand Cankers Disease |
Geosmithia morbida |
Canker development around walnut twig beetle gallery in English walnut. |
| 5406090 |
Thousand Cankers Disease |
Geosmithia morbida |
Walnut twig beetle galleries and cankers in trunk of hybrid walnut. Associated with walnut twig beetle. |
| 5406091 |
Thousand Cankers Disease |
Geosmithia morbida |
Walnut twig galleries and cankers in branch of hybrid walnut. Associated with walnut twig beetle. |
| 5406100 |
Thousand Cankers Disease |
Geosmithia morbida |
Geosmithia conidiophores and conidia. |
| 5406101 |
Thousand Cankers Disease |
Geosmithia morbida |
Cultured Geosmithia colony in yeast phase. |
| 5406103 |
Thousand Cankers Disease |
Geosmithia morbida |
Cultured Geosmithia colony in yeast phase. |
| 5406102 |
Thousand Cankers Disease |
Geosmithia morbida |
Cultured Geosmithia colony in yeast phase. |
| 5406099 |
Thousand Cankers Disease |
Geosmithia morbida |
Geosmithia in PDA agar growing from walnut twig beetle. View from underside of Petri dish.
|
| 5406097 |
Thousand Cankers Disease |
Geosmithia morbida |
Sporulating Geosmithia in PDA agar. |
| 5406098 |
Thousand Cankers Disease |
Geosmithia morbida |
Sporulating Geosmithia in PDA agar. View from underside of Petri dish. |
| 5408099 |
Embellisia skin blotch and bulb canker of garlic |
Embellisia allii |
Magnification of 200X |
| 5408100 |
Embellisia skin blotch and bulb canker of garlic |
Embellisia allii |
Magnification of 400X |
| 5408095 |
Alternaria black molds / stem cankers |
Alternaria spp. |
|
| 5408097 |
Dutch elm disease |
Ophiostoma ulmi |
|
| 5408098 |
Dutch elm disease |
Ophiostoma ulmi |
|
| 5408096 |
gray molds |
Botrytis spp. |
|
| 5408106 |
Tomato Spotted Wilt Virus |
Tospovirus TSWV |
|
| 5408103 |
Penicillium fungi |
Penicillium spp. |
|
| 5364061 |
Fusarium damping-off |
Fusarium oxysporum f.sp. cepae |
Cultures of onion Fusarium on Komada medium in the laboratory. |
| 5364062 |
Fusarium damping-off |
Fusarium oxysporum f.sp. cepae |
Cultures of onion Fusarium on Komada medium in the laboratory. |
| 5361397 |
Sclerotinia rot |
Sclerotinia sclerotiorum |
White mold (Sclerotinia sclerotiorum) sclerotia on potato dextrose agar in the laboratory. Isolated from common bean (Phaseolus vulgaris L.) |
| 5364060 |
botrytis rot |
Botrytis allii |
Cultures of onion Botrytis on potato dextrose agar in the laboratory. |
| 5366669 |
Scleroderris canker of western firs |
Grovesiella abieticola |
Evidence of Scleroderris canker on a twig of subalpine fir. |
| 5366668 |
Scleroderris canker of western firs |
Grovesiella abieticola |
Scleroderris canker on a branch of subalpine fir. |
| 5359599 |
puccinia rusts |
Puccinia spp. |
Aecia of rust (Puccinia sp.) on a thistle leaf. |
| 5360371 |
southern blight |
Sclerotium rolfsii |
Cultures of the sclerotia of Athelia rolfsii (Sclerotium rolfsii), the causal fungus of beans southern blight, in the laboratory. |
| 5358998 |
fungus |
Sclerotium delphinii |
Southern blight (Sclerotium rolfsii) growing on a culture plate in the laboratory. |
| 5364063 |
pink root of onion |
Phoma terrestris |
Cultures of the onion pink root fungus, Phoma terrestris, on Sneh's medium in the laboratory. Isolated from onion (Allium cepa) |
| 5359769 |
Sclerotinia rot |
Sclerotinia sclerotiorum |
White mold symptoms on an interspecifically crossed breeding lines of drybeans in the greenhouse. |
| 5363967 |
dry bean rust |
Uromyces appendiculatus |
A microphotograph of the germ tube and appressorium of a rust fungus Uromyces appendiculatus on a dry bean leaf. |
| 5358918 |
pear scab |
Venturia pirina |
A pear fruit showing symptoms of the pear scab disease caused by Venturia pirina. |
| 5369744 |
poplar rust |
Melampsora medusae |
Yellowish uredia on leaf underside produced shortly before leaf drop in early October |
| 5357457 |
crown rust |
Puccinia coronata |
Close-up view of aecia and pycnia of crown rust of oat (Puccinia coronata) on a leaf of its alternate host, common buckthorn (Rhamnus cathartica). |
| 5359201 |
unknown virus |
|
A bell pepper fruit showing symptoms of a viral infection. |
| 5358920 |
unknown virus |
|
A bell pepper leaf showing symptoms of virus ring spot infection. |
| 5357510 |
unknown fungi |
|
Laminar flow hood used in the laboratory for isolation of pathogens and conducting research into fungi and bacteria in agricultural systems. |
| 5357509 |
unknown fungi |
|
Laboratory setup for isolation of pathogens and conducting research into fungi and bacteria in agricultural systems. |
| 5365398 |
strawberry leaf spot |
Mycosphaerella fragariae |
Strawberry leaf showing symptoms of infection with leaf spot (Mycosphaerella fragariae). |
| 5366933 |
Phellinus fungus |
Phellinus pomaceus |
Conk of Phellinus pomaceus, a fungus that attacks various fruit trees, particularly those in the genus Prunus (plums, peaches, cherries). |
| 5366730 |
Tubercularia cankers |
Tubercularia spp. |
Sporodochia fruiting structures of Tubercularia canker on limbs of a hardwood tree(s). |
| 5357523 |
Sclerotinia rot |
Sclerotinia sclerotiorum |
A culture plate of the white mold fungus Sclerotinia sclerotiorum in the laboratory. |
| 5357516 |
dry bean rust |
Uromyces appendiculatus |
A greenhouse inoculation of a bean plant with the bean rust fungus Uromyces appendiculatus. |
| 5366969 |
Melampsora rusts |
Melampsora spp. |
Microscope view of rust spores (Melampsora sp.) from lanceleaf cottonwood. |
| 5366941 |
indian paint fungus |
Echinodontium tinctorium |
View of the underside of an Echinodontium tinctorium conk. |
| 5366942 |
indian paint fungus |
Echinodontium tinctorium |
An Echinodontium tinctorium conk. |
| 5366938 |
red heart of pine |
Phellinus pini |
Phellinus pini conk. |
| 5366937 |
red heart of pine |
Phellinus pini |
Phellinus pini conk. |
| 5366936 |
laminated root disease |
Phellinus weirii |
Ectotrophic mycelium of the root disease Phellinus weirii, which causes decay in conifer trees. |
| 5366935 |
laminated root disease |
Phellinus weirii |
Evidence of laminated root disease (Phellinus weirii) in douglas-fir. |
| 5366931 |
carbon balls |
Daldinia concentrica |
Conks of carbon ball fungus (Daldinia concentrica) on aspen. |
| 5366922 |
white heartwood rot |
Phellinus tremulae |
Section of aspen showing decay due to Phellinus tremulae. |
| 5366909 |
Trametes wood decay |
Trametes hirsuta |
Conk of Trametes hirsuta, which causes decay in several species of hardwood trees. |
| 5366908 |
Trametes wood decay |
Trametes hirsuta |
Conk of Trametes hirsuta, which causes decay in several species of hardwood trees. |
| 5367247 |
crown gall |
Rhizobium radiobacter |
Juniper seedling afflicted with crown gall (Agrobacterium tumefaciens). |
| 5367235 |
bacterial leaf spot |
Pseudomonas syringae |
Symptoms of bacterial blight (Pseudomonas syringae) on leaves of a lilac. |
| 5357475 |
eastern pine gall rust |
Cronartium quercuum |
Ponderosa pine showing symptoms of eastern pine gall rust caused by the fungus Cronatium quercuum. |
| 5367191 |
Schweinitzii root and butt disease |
Phaeolus schweinitzii |
Basidiocarp of velvet top fungus (Phaeolus schweinitzii) from a conifer tree. |
| 5367190 |
Schweinitzii root and butt disease |
Phaeolus schweinitzii |
Basidiocarp of velvet top fungus (Phaeolus schweinitzii) on a conifer tree. |
| 5366822 |
apple scab |
Venturia inaequalis |
Microscope view of the conidia of apple scab (Venturia inaequalis). |
| 5366820 |
apple scab |
Venturia inaequalis |
Close-up view of apple scab (Venturia inaequalis) on a crabapple leaf. |
| 5366796 |
Marssonina blight of poplar |
Marssonina populi |
Close-up view of Marssonina blight (Marssonina populi) on an aspen leaf. |
| 5366792 |
Marssonina blight of poplar |
Marssonina populi |
Microscopic view of the conidia of Marssonina blight (Marssonina populi). |
| 5366793 |
Marssonina blight of poplar |
Marssonina populi |
Microscopic view of the conidia of Marssonina blight (Marssonina populi). |
| 5366790 |
Marssonina blight of poplar |
Marssonina populi |
Close-up view of Marssonina blight (Marssonina populi) on an aspen leaf. |
| 5366791 |
Marssonina blight of poplar |
Marssonina populi |
Close-up view of Marssonina blight (Marssonina populi) on an aspen leaf. |
| 5366789 |
ink spot leaf blight |
Ciborinia whetzelii |
Signs and symptoms of ink spot leaf blight (Ciborinia whetzelii) on an aspen leaf. |
| 5366788 |
ink spot leaf blight |
Ciborinia whetzelii |
Signs and symptoms of ink spot leaf blight (Ciborinia whetzelii) on an aspen leaf. |
| 5366785 |
ink spot leaf blight |
Ciborinia whetzelii |
Signs and symptoms of ink spot leaf blight (Ciborinia whetzelii) on an aspen leaf. |
| 5366782 |
sooty mold |
|
Sooty mold on a branch of elm. |
| 5366775 |
Mycosphaerella fungi |
Mycosphaerella spp. |
Microscopic view of the conidia of Septoria (Mycosphaerella) species, the causative agent of septoria leaf spot. |
| 5366776 |
Mycosphaerella fungi |
Mycosphaerella spp. |
Microscopic view of the conidia of Septoria (Mycosphaerella) species, the causative agent of septoria leaf spot. |
| 5366755 |
Armillaria root rots |
Armillaria spp. |
Rhizomorphs of armillaria root rot (Armillaria sp.) on an aspen log. |
| 5366754 |
Armillaria root rots |
Armillaria spp. |
Mushroom and mycelial fan characteristic of armillaria root rot (Armillaria sp.) in a conifer tree. |
| 5366741 |
Dutch elm disease |
Ophiostoma ulmi |
Discoloration of elm wood due to the presence of Dutch elm disease (Ophiostoma ulmi). |
| 5366740 |
Dutch elm disease |
Ophiostoma ulmi |
Very close-up view of the coremia (asexual fruiting structures) of Dutch elm disease (Ophiostoma ulmi). |
| 5366733 |
canker and die back of Siberian Elm |
Tubercularia ulmea |
View through a microscope of the spores of Tubercularia canker (Tubercularia ulmea), a disease of Siberian elm (Ulmus pumila). |
| 5366728 |
Cytospora cankers |
Cytospora spp. |
View through a microscope of Cytophora sp. spores, the causative agent of Cytospora canker. |
| 5366721 |
Cytospora cankers |
Cytospora spp. |
Symptoms of Cytospora canker (Cytospora sp.) on the branches of three trees.
|
| 5366720 |
Cytospora cankers |
Cytospora spp. |
Symptoms of Cytospora canker (Cytospora sp.) on the branch of a spruce. |
| 5366719 |
Cytospora cankers |
Cytospora spp. |
Symptoms of Cytospora canker (Cytospora sp.) on the branch of a willow. |
| 5366709 |
Thyronectria canker |
Thyronectria austroamericana |
Cross-section of a honeylocust trunk showing signs of infection with both Thyronectria canker (Thyronectria austro-americana, yellow coloration) and Nectria canker (Nectria cinnabarina, dark coloration). |
| 5366706 |
Thyronectria canker |
Thyronectria austroamericana |
Symptoms of Thyronectria canker (Thyronectria austro-americana) on the trunk of a honeylocust (Gleditsia triacanthos) tree. |
| 5366708 |
Thyronectria canker |
Thyronectria austroamericana |
Microscopic view of the asci of Thyronectria canker (Thyronectria austro-americana) on honeylocust (Gleditsia triacanthos). |
| 5366707 |
Thyronectria canker |
Thyronectria austroamericana |
Imperfect fruiting bodies of Thyronectria canker (Thyronectria austro-americana) on honeylocust (Gleditsia triacanthos). |
| 5366695 |
black knot |
Apiosporina morbosa |
Branches of a chokecherry (Prunus virginiana) showing signs and symptoms of black knot canker (Apiosporina morbosa). |
| 5366694 |
black knot |
Apiosporina morbosa |
Cross-section of the trunk of a chokecherry (Prunus virginiana) showing signs and symptoms of black knot canker (Apiosporina morbosa). |
| 5366692 |
black knot |
Apiosporina morbosa |
Section of a chokecherry branch (Prunus virginiana) showing signs and symptoms of black knot canker (Apiosporina morbosa). |
| 5366691 |
Cryptosphaeria canker |
Cryptosphaeria ligniota |
Signs and symptoms of Cryptosphaeria canker (Cryptosphaeria ligniota) on the trunk of an aspen tree (Populus tremuloides). |
| 5366682 |
sooty-bark canker |
Encoelia pruinosa |
Signs and symptoms of sooty-bark canker (Encoelia pruinosa) on the trunk of an aspen tree (Populus tremuloides). |
| 5366679 |
Hypoxylon canker of aspen |
Entoleuca mammata |
Close-up view of hypoxylon canker (Hypoxylon mammatum) on the trunk of an aspen tree (Populus tremuloides). |
| 5366672 |
black rot |
Ceratocystis fimbriata |
Black canker (Ceratocystis fimbriata) on an aspen tree. |
| 5366667 |
Siberian elm canker |
Botryodiplodia hypodermia |
Signs and symptoms of Botryodiplodia canker (Botryodiplodia hypodermia) on an elm trunk. |
| 5366665 |
Endothia fungus |
Endothia singularis |
Signs and symptoms of Endothia canker (Endothia singularis) on a branch of Gambel oak (Quercus gambelii). |
| 5366664 |
Endothia fungus |
Endothia singularis |
Signs and symptoms of Endothia canker (Endothia singularis) on the branch of a Gambel oak (Quercus gambelii). |
| 5366663 |
Endothia fungus |
Endothia singularis |
Signs and symptoms of Endothia canker (Endothia singularis) on branches of Gambel oak (Quercus gambelii). |
| 5361255 |
bacterial black stalk |
Erwinia spp. |
Close-up view of the damage caused by bacterial soft rot (Erwinia carotovora) on a stalk of corn. |
| 5359767 |
Sclerotinia rot |
Sclerotinia sclerotiorum |
White mold (Sclerotinia sclerotiorum) symptoms on some interspecifically crossed breeding lines of drybeans in the greenhouse. |
| 5359768 |
Sclerotinia rot |
Sclerotinia sclerotiorum |
White mold (Sclerotinia sclerotiorum) symptoms on some interspecifically crossed breeding lines of drybeans in the greenhouse. |
| 5359766 |
Sclerotinia rot |
Sclerotinia sclerotiorum |
White mold (Sclerotinia sclerotiorum) symptoms on some interspecifically crossed breeding lines of drybeans in the greenhouse. |
| 5359765 |
Fusarium wilt |
Fusarium oxysporum f.sp. phaseoli |
A greenhouse research on the infection of Fusarium wilt caused by Fusarium oxysporum f.sp. phaseoli on drybeans. |
| 5367618 |
root rot/damping off |
Rhizoctonia spp. |
A root rot grading scale for Fusarium root rot (Fusarium solani) and Rhizoctonia root rot (Rhizoctonia spp.) on drybeans. |
| 5365362 |
dry bean rust |
Uromyces appendiculatus |
Blisters (young uredia) on bean leaves, due to infection with bean rust (Uromyces appendiculatus). |
| 5365361 |
dry bean rust |
Uromyces appendiculatus |
Blisters (young uredia) on a bean leaf, due to infection with bean rust (Uromyces appendiculatus). |
| 5365360 |
dry bean rust |
Uromyces appendiculatus |
Uredia and necrosis on a bean leaf, due to infection with bean rust (Uromyces appendiculatus). |
| 5365358 |
dry bean rust |
Uromyces appendiculatus |
Telia of bean rust (Uromyces appendiculatus) on the leaf of a bean plant. |
| 5365355 |
dry bean rust |
Uromyces appendiculatus |
Aecia of bean rust (Uromyces appendiculatus) on the stem of a dry bean plant inoculated in the greenhouse. |
| 5365354 |
dry bean rust |
Uromyces appendiculatus |
Aecia of bean rust (Uromyces appendiculatus) on the stem of a dry bean plant inoculated in the greenhouse. |
| 5365353 |
dry bean rust |
Uromyces appendiculatus |
Aecia of bean rust (Uromyces appendiculatus) on the stem of a dry bean plant inoculated in the greenhouse. |
| 5365352 |
dry bean rust |
Uromyces appendiculatus |
Pycnia and aecia of bean rust (Uromyces appendiculatus) on the stems of dry bean plants inoculated in the greenhouse. |
| 5365351 |
dry bean rust |
Uromyces appendiculatus |
Close-up view of aecia of bean rust (Uromyces appendiculatus) on the stem of a dry bean plant inoculated in the greenhouse. |
| 5365350 |
dry bean rust |
Uromyces appendiculatus |
Aecia of bean rust (Uromyces appendiculatus) on the stem of a dry bean plant inoculated in the greenhouse. |
| 5365349 |
dry bean rust |
Uromyces appendiculatus |
Aecia of bean rust (Uromyces appendiculatus) on the petiole of a dry bean plant inoculated in the greenhouse. |
| 5365348 |
dry bean rust |
Uromyces appendiculatus |
Pycnia of rust (Uromyces appendiculatus) on the leaf of a volunteer dry bean plant. |
| 5365347 |
dry bean rust |
Uromyces appendiculatus |
Rust pycnium (Uromyces appendiculatus) on the leaf of a volunteer dry bean plant. |
| 5365344 |
dry bean rust |
Uromyces appendiculatus |
Aecium of bean rust (Uromyces appendiculatus) on the petiole of a volunteer dry bean plant. |
| 5365343 |
dry bean rust |
Uromyces appendiculatus |
Aecia and pycnia of bean rust (Uromyces appendiculatus) on the leaves and stem of a volunteer dry bean plant. |
| 5365342 |
dry bean rust |
Uromyces appendiculatus |
Rust (Uromyces appendiculatus) aecia and pycnia on the leaves of a volunteer dry bean plant. |
| 5365341 |
dry bean rust |
Uromyces appendiculatus |
Rust pycnia (Uromyces appendiculatus) on the leaf of a volunteer dry bean plant. |
| 5365340 |
dry bean rust |
Uromyces appendiculatus |
Rust pycnia (Uromyces appendiculatus) on the leaf of a volunteer dry bean plant. |
| 5365338 |
dry bean rust |
Uromyces appendiculatus |
Rust pycnia (Uromyces appendiculatus) on the leaf of a volunteer dry bean plant. |
| 5363972 |
Sclerotinia rot |
Sclerotinia sclerotiorum |
Apothecia of white mold (Sclerotinia sclerotiorum) in a petri dish. |
| 5363968 |
Sclerotinia rot |
Sclerotinia sclerotiorum |
Photomicrograph of the ascus and ascospores of white mold (Sclerotinia sclerotiorum), a disease of dry beans. |
| 5363966 |
dry bean rust |
Uromyces appendiculatus |
Microphotograph of the germinating tubes of rust spores (Uromyces appendiculatus) on a dry bean leaf. |
| 5363965 |
dry bean rust |
Uromyces appendiculatus |
Microphotograph of the germinating tubes of rust spores (Uromyces appendiculatus) on a dry bean leaf. |
| 5363964 |
dry bean rust |
Uromyces appendiculatus |
Symptoms of dry bean rust (Uromyces appendiculatus) after spot inoculation of a leaf in the laboratory, demonstrating resistance to infection. |
| 5363963 |
dry bean rust |
Uromyces appendiculatus |
Symptoms of dry bean rust (Uromyces appendiculatus) after spot inoculation of a leaf in the laboratory, demonstrating a susceptible reaction. |
| 5363962 |
dry bean rust |
Uromyces appendiculatus |
Spot inoculation of a dry bean leaflet with rust (Uromyces appendiculatus) urediniospores. |
| 5363961 |
dry bean rust |
Uromyces appendiculatus |
Urediniospores and teliospores of bean rust (Uromyces appendiculatus) under the microscope. |
| 5363960 |
dry bean rust |
Uromyces appendiculatus |
Portions of dry bean leaves demonstrating various sizes of rust pustules (Uromyces appendicultus) on the upper and under surfaces of leaves. |
| 5363959 |
dry bean rust |
Uromyces appendiculatus |
Series of leaves showing degrees of rust (Uromyces appendiculatus) incidence in dry beans. |
| 5363944 |
dry bean rust |
Uromyces appendiculatus |
Telia of rust (Uromyces appendiculatus) on the stem of a bean plant. |
| 5363943 |
dry bean rust |
Uromyces appendiculatus |
Symptoms of rust (Uromyces appendiculatus) on the stem of a bean plant. |
| 5358871 |
Floury leaf spot |
Mycovellosiella phaseoli |
Underside of a bean leaf displaying symptoms of floury leaf spot (Mycovellosiella phaseoli). |
| 5358870 |
Floury leaf spot |
Mycovellosiella phaseoli |
Bean leaves displaying symptoms of floury leaf spot (Mycovellosiella phaseoli) in Colombia. |
| 5361490 |
bacterial brown spot of bean/canker of stone fruit, twig blight |
Pseudomonas syringae pv. syringae |
Inoculation of an experimental bean seedling with bacterial brown spot disease (Pseudomonas syringae pv. syringae) in the greenhouse. |
| 5361439 |
Common bacterial blight of beans, fuscous blight |
Xanthomonas axonopodis pv. phaseoli |
Bean leaves showing advanced symptoms of common bacterial blight (Xanthomonas campestris p.v. phaseoli). |
| 5361436 |
Common bacterial blight of beans, fuscous blight |
Xanthomonas axonopodis pv. phaseoli |
"Water soaking" on bean leaves, due to infection with common bacterial blight (Xanthomonas campestris p.v. phaseoli). |
| 5361404 |
dry bean rust |
Uromyces appendiculatus |
Leaves of volunteer bean plants infected with young and mature uredia of bean rust. |
| 5361403 |
dry bean rust |
Uromyces appendiculatus |
Stem of a volunteer bean plant infected with the pycnia and aecia of bean rust. |
| 5361402 |
dry bean rust |
Uromyces appendiculatus |
Leaves of volunteer bean plants infected with the pycnia, aecia, and uredia of bean rust. |
| 5361400 |
dry bean rust |
Uromyces appendiculatus |
Inoculating bean leaves with rust spores (bean rust, Uromyces appendiculatus) in the greenhouse. |
| 5361398 |
dry bean rust |
Uromyces appendiculatus |
Telia of bean rust (Uromyces appendiculatus) on a bean leaf. |
| 5361386 |
Sclerotinia rot |
Sclerotinia sclerotiorum |
The sclerotia of whitemold Sclerotinia sclerotiorum in the laboratory. |
| 5361377 |
bacterial wilt |
Burkholderia caryophylli |
Bean seeds infected with bacterial wilt. |
| 5361376 |
bacterial leaf spot |
Pseudomonas syringae |
Cultures of bean halo blight colonies giving off black light fluorescence on artificial media in the laboratory. |
| 5361375 |
bacterial leaf spot |
Pseudomonas syringae |
Cultures of bean halo blight colonies on artificial media in the laboratory. |
| 5361374 |
bacterial leaf spot |
Pseudomonas syringae |
Cultures of bean halo blight colonies on artificial media in the laboratory. |
| 5361371 |
Rhizoctonia damping-off, blight and rot |
Rhizoctonia solani |
Roots of drybean seedlings showing early symptoms of Rhizoctonia root rot caused by Rhizoctonia solani. |
| 5361369 |
Fusarium wilt |
Fusarium oxysporum f.sp. phaseoli |
Roots of drybeans showing advanced symptoms of Fusarium root rot caused by Fusarium oxysporum f.sp. phaseoli. |
| 5360378 |
Rhizoctonia damping-off, blight and rot |
Rhizoctonia solani |
Drybean pods showing symptoms of web blight caused by Thanatephorus cucumeris. |
| 5358907 |
Phoma blight |
Phoma exigua var. exigua |
Ascochyta blight on a bean petiole and branch casued by Phoma exigua var. exigua in a field in Colombia. |
| 5358905 |
gray mold |
Botrytis cinerea |
Gray mold (Botrytis cinerea) infestion of a bean pod in a field in Colombia. |
| 5358900 |
Cercospora fungi |
Cercospora spp. |
Coinfection of gray leaf spot (Cercospora vanderysti) and white leaf spot (Pseudocercosporella albida) on drybean leaflet in a field in Colombia. |
| 5358898 |
Cercospora fungi |
Cercospora spp. |
The scale of gray leaf spot caused by Cercospora vanderysti on drybean leaflets in a field in Colombia. |
| 5358896 |
White Leaf Spot |
Pseudocercosporella albida |
The scale of white leafspot of drybeans leaflets caused by Pseudocercosporella albida in a field in Colombia. |
| 5358893 |
Mycosphaerella fungus |
Mycosphaerella cruenta |
Leafspot of drybeans caused by Cercospora cruenta in a field in Colombia. |
| 5358891 |
bean angular leaf spot |
Phaeoisariopsis griseola |
Angular leafspot (Phaeoisariopsis griseola) infection of a dyrbean pod in Colombia. |
| 5358890 |
bean angular leaf spot |
Phaeoisariopsis griseola |
Angular leafspot (Phaeoisariopsis griseola) infection of a dyrbean pods in Colombia. |
| 5358994 |
Rhizoctonia damping-off, blight and rot |
Rhizoctonia solani |
Symptoms of web blight (Thanatephorus cucumeris) on the pods of dry beans. |
| 5357178 |
dry bean rust |
Uromyces appendiculatus |
Close-up view of a pycnium and an aecium of bean rust (Uromyces appendiculatus). |
| 5357177 |
dry bean rust |
Uromyces appendiculatus |
Close-up view of the pycnium of bean rust (Uromyces appendiculatus). |
| 5357176 |
dry bean rust |
Uromyces appendiculatus |
Close-up view of the pycnium of bean rust (Uromyces appendiculatus). |
| 5357627 |
Phoma blights |
Phoma spp. |
Close-up view of a bean stem displaying symptoms of Phoma leaf spot (Phoma sp.). |
| 5357625 |
bean anthracnose |
Colletotrichum lindemuthianum |
Close-up view of a bean pod, displaying symptoms of bean anthracnose (Colletotrichum lindemuthianum). |
| 5357624 |
bean anthracnose |
Colletotrichum lindemuthianum |
Close-up view of a bean leaf petiole, displaying symptoms of bean anthracnose (Colletotrichum lindemuthianum). |
| 5357623 |
bean angular leaf spot |
Phaeoisariopsis griseola |
Close-up view of the symptoms of angular leaf spot disease (Phaeoisariopsis griseola) in dry beans. |
| 5357613 |
Sclerotinia rot |
Sclerotinia sclerotiorum |
Straw technique used to inoculate experimental plants with white mold (Sclerotinia sclerotiorum) in the greenhouse. |
| 5357612 |
Sclerotinia rot |
Sclerotinia sclerotiorum |
Straw technique used to inoculate experimental plants with Sclerotinia rot (Sclerotinia sclerotiorum). |
| 5359981 |
Enterobacter bulb decay |
Enterobacter cloacae |
Onion bulb sliced open to reveal damage by infection with Enterobacter cloacae. |
| 5359982 |
Enterobacter bulb decay |
Enterobacter cloacae |
Onion bulb sliced open to reveal damage by infection with Enterobacter cloacae. |
| 5359979 |
Enterobacter bulb decay |
Enterobacter cloacae |
Onion bulb sliced open to reveal damage by infection with Enterobacter cloacae. |
| 5359980 |
Enterobacter bulb decay |
Enterobacter cloacae |
Onion bulb sliced open to reveal damage by infection with Enterobacter cloacae. |
| 5359978 |
Enterobacter bulb decay |
Enterobacter cloacae |
Onion bulbs sliced open to reveal damage by infection with Enterobacter cloacae. |
| 5359977 |
Enterobacter bulb decay |
Enterobacter cloacae |
Onion bulbs sliced open to reveal damage by infection with Enterobacter cloacae. |
| 5359976 |
Enterobacter bulb decay |
Enterobacter cloacae |
Onion bulbs sliced open to reveal damage by infection with Enterobacter cloacae. |
| 5359972 |
botrytis rot |
Botrytis allii |
Onion bulb ruined by Botrytis neck rot (Botrytis allii). |
| 5359971 |
botrytis rot |
Botrytis allii |
Onion bulb completely ruined by Botrytis neck rot (Botrytis allii). |
| 5366488 |
onion rust |
Puccinia allii |
Evidence of Puccinia porri (P. allii), a rust infecting onions. |
| 5366489 |
onion rust |
Puccinia allii |
Pustules of Puccinia porri (P. allii), a rust infecting onions. |
| 5364059 |
botrytis rot |
Botrytis allii |
A greenhouse inoculation of sliced onion bulbs with the Botrytis rot pathogen, Botrytis allii. |
| 5358523 |
Iris Yellow Spot Virus |
Tospovirus IYSV |
Imported seedling transplant infected with Iris Yellow Spot Virus (spring 2004). |
| 5361514 |
onion smudge |
Colletotrichum circinans |
An onion bulb with symptoms of the onion smudge disease caused by Colletotrichum circinans. |
| 5361513 |
gray mold |
Botrytis cinerea |
Yellow onion bulbs with symptoms of the brown stain disease caused by Bortytis cinerea. |
| 5361510 |
botrytis rot |
Botrytis allii |
An onion bulb with early symptoms of the neck rot disease caused by Bortytis allii. |
| 5361478 |
bacterial soft rot |
Pectobacterium carotovorum ssp. carotovorum |
Late bulb symptoms of bacterial soft rot Erwinia carotovora pv. carotovora of onions. |
| 5360332 |
black mold |
Aspergillus niger |
Black mold (Aspergillus niger) on an onion. |
| 5360331 |
black mold |
Aspergillus niger |
Black mold on an onion. |
| 5360330 |
gray molds |
Botrytis spp. |
Gray mold (Botrytis sp.) and black mold (Aspergillus niger) on onions. |
| 5357392 |
Pantoea rot and blight |
Pantoea ananatis pv. ananatis |
Cut-away view of damage from Pantoea bacterial blight in an onion. |
| 5357393 |
Pantoea rot and blight |
Pantoea ananatis pv. ananatis |
Cut-away view of an onion infected with Pantoea bacterial blight. |
| 5357394 |
Pantoea rot and blight |
Pantoea ananatis pv. ananatis |
Cut-away view of an onion afflicted with Pantoea bacterial blight. |
| 5357395 |
Pantoea rot and blight |
Pantoea ananatis pv. ananatis |
Cross-sectional view of an onion bulb afflicted with Pantoea bacterial blight. |
| 5357396 |
Pantoea rot and blight |
Pantoea ananatis pv. ananatis |
Damage to the interior of an onion, caused by Pantoea bacterial blight. |
| 5357397 |
Pantoea rot and blight |
Pantoea ananatis pv. ananatis |
Damage to the interior of an onion, caused by Pantoea bacterial blight. |
| 5357398 |
Pantoea rot and blight |
Pantoea ananatis pv. ananatis |
Onions cut open to show damage caused by Pantoea bacterial blight. |
| 5357402 |
Pantoea rot and blight |
Pantoea ananatis pv. ananatis |
Onion bulbs cut open to reveal damage caused by Pantoea bacterial blight. |
| 5357401 |
Pantoea rot and blight |
Pantoea ananatis pv. ananatis |
Two onions cut open to show damage from Pantoea bacterial blight (described as Pantoea ananatis). |
| 5357400 |
Pantoea rot and blight |
Pantoea ananatis pv. ananatis |
Onion bulb cut open to show damage from Pantoea bacterial blight. |
| 5357399 |
Pantoea rot and blight |
Pantoea ananatis pv. ananatis |
Onion bulb cut open to show damage from Pantoea bacterial blight. |
| 5358526 |
Iris Yellow Spot Virus |
Tospovirus IYSV |
Preparation of tissues for an ELISA test in the laboratory to identify the presence of Iris Yellow Spot Virus on imported seedling transplants of onions (spring 2004) |
| 5358525 |
Iris Yellow Spot Virus |
Tospovirus IYSV |
Preparation of tissues for an ELISA test in the laboratory to identify the presence of Iris Yellow Spot Virus on imported seedling transplants of onions (spring 2004) |
| 5357622 |
downy mildew |
Peronospora destructor |
Graphic display of downy mildew on onions |
| 5357621 |
botrytis rot |
Botrytis allii |
Poster describing Botrytis diseases of onion |
| 5178022 |
botrytis rot |
Botrytis allii |
initial infection and colonization of onion bulb neck tissue by the Botrytis fungus, note gray to gray-black discoloration of infected onion tissue |
| 5356715 |
Cytospora cankers |
Cytospora spp. |
Cytosporaspore tendrils on Sycamore |
